121222011110 has 16 divisors (see below), whose sum is σ = 218378055456. Its totient is φ = 48449152128.

The previous prime is 121222011103. The next prime is 121222011137. The reversal of 121222011110 is 11110222121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4943699 + ... + 4968158.

It is an arithmetic number, because the mean of its divisors is an integer number (13648628466).

Almost surely, 2^121222011110 is an apocalyptic number.

121222011110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222011110 is a deficient number, since it is larger than the sum of its proper divisors (97156044346).

121222011110 is a wasteful number, since it uses less digits than its factorization.

121222011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9913087.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121222011110 its reverse (11110222121), we get a palindrome (132332233231).

It can be divided in two parts, 121222011 and 110, that added together give a palindrome (121222121).

The spelling of 121222011110 in words is "one hundred twenty-one billion, two hundred twenty-two million, eleven thousand, one hundred ten".